1. Moser, F. H. and Thomas, L., Phthalocyanine Compounds. Reinhold Publishing Corporation, New York, 1963.
2. Smith, H. M., Phthalocyanines. In The Pigment Handbook, 2nd edn, Vol. 1, ed. P. A., Lewis, John Wiley, New York, 1988, p. 663.
3. Moser, F. H. and Thomas, A. L., The Phthalocyanines. Vols. 1 and 2, CRC Press, Boca Raton, Florida, 1983.
4. Leznoff, C. C. and Lever, A. B. P., Phthalocyanines: Properties and Applications. VCH, Weinheim, 1989.
5. Koçak, M., Okur, A. I. and Bekaroğlu. Ö., J. Chem. Soc. Dalton Trans., 1994, 323.